San Francisco police on Oct. 26 arrested a woman accused of being connected to a deadly assault in the Mission District.

Nancy Tynan, 55, of San Francisco, died on Oct. 23 after being taken off life support at San Francisco General Hospital.

She reportedly was assaulted by two people shortly after 7 p.m. on Oct. 15 in the 300 block of Potrero Avenue, near 16th Street.

Witnesses told police that Tynan had been arguing with a man and a woman aboard a bus, and that all three left the bus together. The yelling continued on the street, and then Tynan was seen lying on the ground unconscious.Both suspects fled the area on foot.